There seems to be a problem with the current Flex 4 charting components. When a chart is printed, the y-axis labels disappear. This can be seen by going into the Adobe docs for line charts, and right-clicking on one of the examples and choosing print. Voila, no y-axis labels on the printout.

Is anyone aware of a resolution for this? Is this in fact a bug that i should report?

And if so, does anyone know how i can use the Flex 3 datavisualization components in a Flex 4 project?